I haven't tried it but I think it should work. the normal res pot
adjusts the gain of an amplifier and and that amp is run right back into
the BP input anyway.
I had a plan to build a modified version that had VC-Resonance. I just
won't have to time try it out till I finish some other things, but It's
basically the same idea as this. only I would replace that amplifier
used in the filter by a VCA where the VCA had a limited range of gain.
I also wanted to try and improve the CV biasing circuit but haven't
figured out a way that I like enough yet.
Yves Usson has a version using an opamp where it's easier to see how it
works. also there's a link to Nyle Steiner's article discussing the filter.
http://www-timc.imag.fr/Yves.Usson/personnel/SDIY/Modular/EN/STEINERVCF/
Fernando wrote:
adjusts the gain of an amplifier and and that amp is run right back into
the BP input anyway.
I had a plan to build a modified version that had VC-Resonance. I just
won't have to time try it out till I finish some other things, but It's
basically the same idea as this. only I would replace that amplifier
used in the filter by a VCA where the VCA had a limited range of gain.
I also wanted to try and improve the CV biasing circuit but haven't
figured out a way that I like enough yet.
Yves Usson has a version using an opamp where it's easier to see how it
works. also there's a link to Nyle Steiner's article discussing the filter.
http://www-timc.imag.fr/Yves.Usson/personnel/SDIY/Modular/EN/STEINERVCF/
Fernando wrote:
>
> Hi all,
>
> I wonder about an external resonance circuit by sending the output back
> to the BP input
> via VCA.
> Anyone tried this?
>
> Fernando